Deleting uploaded images through the LR Mobile App while staying integrated in LR Classic

Hey everyone,

Last year when I was on vacation I synced around 250 Images (RAW, 70MB) from my Tablet trough the LR Mobile App into the 100GB cloud storage. (This is more of a safety thing for me than anything else)

After I came home I went throgh my standard routine of importing my normal FIles (around 10.000) into LRClassic. The Images the were stored in the cloud were not duplicated and I moved the storage folder into the other images on my harddrive. So that I was able to delete the Images that were uploaded into the cloud and downloaded onto my computer from my harddrive.

Now the question:

How do I delete the images in the cloudstorage without deleting them on my harddrive? Until now I havent found an option to delete them without removing them from my catalog. But the storagespace in the cloud fills up without the option to deleting images...

Sorry for the long question and thank you in advance!

All the best Sam!